A circular shaped item with an aperture manufactured to predetermined dimensions and designed for use as a seal in stuffing boxes, packing nuts, and the like. It may be (1) any nonmetallic molded or formed ring (except solid (without joint) rings having a square or rectangular cross section); or (2) any shredded metal or metal foil type metallic or semimetallic rings. Excludes felt items but includes multimaterial items in which one of the materials is felt. For solid (without joints) nonmetallic items with a square or rectangular cross section, see washer (as modified) and gasket. For rubber items specifically designed for weather-proofing doors, windows, chests, and the like see seal, nonmetallic angle; seal, nonmetallic channel; and seal, nonmetallic, special shaped section. For circular (with aperature) nonmetallic items with a solid round cross-section see o-ring. Excludes cup, compression; gasket; washer (as modified); and felt, mechanical, preformed.
Classification: Gaskets,washers & other seals
NSN 6105-00-053-8638
NSN 7035-01-524-8969
NSN 6105-01-229-5287
NSN 6130-00-785-6274
NSN 5990-00-964-6422
NSN 5999-00-883-0081
NSN 6620-01-601-4314
NSN 6135-01-265-1384
NSN 6240-00-045-4588
NSN 5975-00-389-6958
NSN 6150-01-427-3764
NSN 5945-01-547-6646